Rules  1  2  3  4  5  6  7  8  9  10  11  12  13  14 
Rule 3 - Add an Expires Header
 Examples  1  2 
Example 2 - Far Future Expires

Roundtrip response time:

This example contains six images, three scripts and one stylesheet that do have a far future Expires header. Reload the page several times and compare the response time to Example 1 - No Expires. This example is faster because it uses the cache thus avoiding ten additional HTTP requests.

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